Patents by Inventor Daniil Kitchaev
Daniil Kitchaev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11959041Abstract: A device includes a tribological assembly including first and second mechanical components in relative motion with respect to each other, the assembly having a silver-alloy surface and an additive lubricant including at least one component of the formulas (Ia) or (II): MxNOy (Ia), where M is Ca, V, Sb, Ni, or Ag, x (M:N ratio) is any number between 0.25 and 2, and y (O:N ratio) is any number between 1 and 8; MxSiOy (II), where M is Mg or Al, x (M:Si ratio) is any number between 0.5 and 2, and y (O:Si ratio) is any number between 2.5 and 6, the device being a sealed constant-pressure device.Type: GrantFiled: August 31, 2022Date of Patent: April 16, 2024Assignee: Robert Bosch GmbHInventors: Daniil A Kitchaev, Mordechai Kornbluth, Martin-Christoph Kruse, Charles Tuffile
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Publication number: 20240067893Abstract: A device includes a tribological assembly including first and second mechanical components in relative motion with respect to each other, the assembly having a silver-alloy surface and an additive lubricant including at least one component of the formulas (Ia) or (II): MxNOy (Ia), where M is Ca, V, Sb, Ni, or Ag, x (M:N ratio) is any number between 0.25 and 2, and y (O:N ratio) is any number between 1 and 8; MxSiOy (II), where M is Mg or Al, x (M:Si ratio) is any number between 0.5 and 2, and y (O:Si ratio) is any number between 2.5 and 6, the device being a sealed constant-pressure device.Type: ApplicationFiled: August 31, 2022Publication date: February 29, 2024Inventors: Daniil A KITCHAEV, Mordechai KORNBLUTH, Martin-Christoph KRUSE, Charles TUFFILE
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Publication number: 20240067894Abstract: A tribological system includes a tribological contact area including a first tribological contact surface of a first mechanical component and a second tribological contact surface of a second mechanical component, the first and second mechanical components being in relative motion with respect to each other; an external circuit connected to the first and second mechanical components and providing Joule heating; and an additive in contact with the tribological contact area, the additive having a first viscosity in a first state before the external circuit is activated, a second viscosity in a second state when the external circuit is activated to produce Joule heating, and a third viscosity in a third state when the external circuit is deactivated after activation, the second viscosity being lower than the third viscosity.Type: ApplicationFiled: August 31, 2022Publication date: February 29, 2024Inventors: Daniil A. KITCHAEV, Mordechai KORNBLUTH, Martin-Christoph KRUSE, Charles TUFFILE
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Publication number: 20230411635Abstract: A cathode catalyst layer includes a substrate and an ionomer structured as a biphasic lamellar film in contact with the substrate, the lamellar film including a plurality of alternating layers of hydrophobic backbones and hydrophilic sidechains, the film having an outermost layer formed by the hydrophobic backbone affixed in place, the outermost layer being free of hydrophilic groups and forming a hydrophobic surface throughout the cathode catalyst layer.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Daniil A KITCHAEV, Wolfgang OLBRICH, Karim GADELRAB, Mordechai KORNBLUTH, Georgy SAMSONIDZE, Charles TUFFILE, Jonathan BRAATEN
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Publication number: 20230411628Abstract: An electrochemical cell cathode catalyst layer includes electrocatalyst particles, an electrocatalyst support having an electronically conductive porous material including a plurality of pores with a diameter of less than or equal to 10 nm having a surface morphology comprising a plurality of peaks and valleys, the surface morphology being configured to contain the electrocatalyst particles within the plurality of pores and to enhance mass transport of molecular oxygen to the electrocatalyst particles by adsorbing molecular oxygen to the surface morphology, and an ionomer adhered to the electrocatalyst, the electrocatalyst support, or both.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Mordechai KORNBLUTH, Daniil A. KITCHAEV, Jonathan BRAATEN, Lei CHENG, Christina JOHNSTON
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Publication number: 20230411631Abstract: An electrochemical cell (e.g., a fuel cell) including an anode catalyst layer, a cathode catalyst layer, and an electrolyte membrane layer extending between the anode catalyst layer the cathode catalyst layer, and a graphene-based layer. The graphene-based layer is disposed between the cathode catalyst layer and the electrolyte membrane layer and/or the anode catalyst layer and the electrolyte membrane layer. The graphene-based layer is configured to suppress crossover gases and metallic cation exchange to enhance performance and durability of the electrochemical cell.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Jonathan BRAATEN, Lei CHENG, Shirin MEHRAZI, Morteza REZAEI TALARPOSHTI, Daniil KITCHAEV, Nathan CRAIG, Christina JOHNSTON
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Publication number: 20230411637Abstract: Microcracked and crack-free catalyst layers such as for electrodes in electrochemical cells (e.g., fuel cells) and method of making the same are disclosed. The microcracks may improve durability by better tolerating stresses without inducing or propagating into macrocracks. The microcracks also improve efficiency by providing reactant (e.g., oxygen) passages to catalyst in the catalyst layer. The microcracks may be formed in a predetermined pattern to further localize additional reactant passages is conventionally starved or more starved locations.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Daniil A. KITCHAEV, Mordechai KORNBLUTH, Lei CHENG, Jonathan BRAATEN, Christina JOHNSTON
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Publication number: 20230411636Abstract: An electrochemical cell includes an anode, a cathode, and a membrane physically separating the anode from the cathode, the cathode having a cathode catalyst layer including an ionomer and an electrocatalyst support substrate forming an ionomer-support interface having a covalent bond between the substrate and the ionomer via a grafting compound, the substrate further having a plurality of terminated hydrophilic groups.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Mordechai KORNBLUTH, Daniil A KITCHAEV, Jonathan BRAATEN, Lei CHENG
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Publication number: 20230411638Abstract: An electrochemical cell (e.g., a fuel cell) includes an anode layer, a cathode layer, and an electrolyte membrane layer disposed between and spacing part the anode layer and the cathode layer. The electrochemical cell further includes a functional layer disposed at an interface between the cathode layer and the electrode membrane layer. The functional layer includes a composition including a carbon material, an ionomer material, and optionally an amount of catalyst material.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Lei CHENG, Morteza REZAEI TALARPOSHTI, Jonathan BRAATEN, Daniil KITCHAEV, Nathan CRAIG, Christina JOHNSTON
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Publication number: 20230402631Abstract: An electrochemical cell catalyst state of health monitoring device. The device includes a first magnetic device adjacent a first side of a first catalyst material associated with a first electrode. The device further includes a second magnetic device adjacent a second side of the first catalyst material. The first or second magnetic device is configured to generate a magnetic field. The other of the first and second magnetic devices is configured to receive a magnetic response from the first catalyst material. The device also includes a controller configured to receive the magnetic response and to determine magnetic response data of the first catalyst material in response to the magnetic response. The magnetic response data is indicative of a state of health.Type: ApplicationFiled: June 9, 2022Publication date: December 14, 2023Inventors: Daniil A. KITCHAEV, Mordechai KORNBLUTH, Lei CHENG, Kuppan SARAVANAN, Jonathan BRAATEN, Nathan CRAIG, Charles TUFFILE
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Publication number: 20230290973Abstract: An electrochemical system includes a hydrogen diffusion barrier physically separating the system into a hydrogen rich zone and a hydrogen poor zone, an electronic component located in the hydrogen poor zone and exposed to hydrogen diffusing from the hydrogen rich zone, a hydrogen pump, located in the hydrogen rich zone and the hydrogen poor zone, including: a cathode, an anode, an electrolyte separating the cathode and the anode, an anode encapsulation contacting the anode and a portion of the electrolyte, and an external electrical circuit biased to drive H+ current from the anode to the cathode to pump hydrogen diffusing from the hydrogen rich zone into the hydrogen poor zone back into the hydrogen rich zone.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Inventors: Daniil A. KITCHAEV, Mordechai KORNBLUTH, Karim GADELRAB, Jonathan MAILOA, Charles TUFFILE
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Publication number: 20230287590Abstract: An electrochemical cell active hydrogen capture and release system including a first zone having a target predetermined concentration of hydrogen c1 and housing: an electrical component, an adsorbing electrode including a hydrogen adsorbing material, a counter electrode separated from the adsorbing electrode, and an electric circuit connecting the adsorbing and counter electrodes to apply electrical bias configured to facilitate capture and release of hydrogen gas from the adsorbing electrode; and a second zone having a target predetermined concentration of hydrogen c2, c2 being greater than c1.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Inventors: Daniil A. KITCHAEV, Mordechai KORNBLUTH, Karim GADELRAB, Jonathan MAILOA, Charles TUFFILE
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Publication number: 20230290976Abstract: An electrochemical cell includes a first hydrogen-rich zone including a cathode, a second hydrogen-poor zone including an anode, an electrical component, and a sorbent configured to capture hydrogen in the second zone and release hydrogen protons into the first zone, an electrolyte located between the cathode and the sorbent, and an electrical circuit arranged to apply voltage bias to remove the captured hydrogen from the sorbent.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Inventors: Daniil A. KITCHAEV, Mordechai KORNBLUTH, Karim GADELRAB, Jonathan MAILOA, Charles TUFFILE
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Publication number: 20230124773Abstract: A current conductor for use in an electrochemical device for removing ions from a solution. The current conductor includes a current conductor substrate having a current conductor surface. The current conductor also includes an anti-corrosive, anti-reactive coating coated onto the current conductor surface. The anti-corrosive, anti-reactive coating contains a material with a chemical composition of AOy, where A= Zr, Nb, Ti, or a combination thereof and 2 < y < 3; MxAOy, where M= Ca, Mg, Na, or a combination thereof, A= Zr, Nb, Ti, or a combination thereof, 0 < x < 2, and 2 < y < 3; MgCr2O4; or a combination thereof.Type: ApplicationFiled: October 18, 2021Publication date: April 20, 2023Inventors: Mordechai KORNBLUTH, Daniil KITCHAEV, Jake CHRISTENSEN, Charles TUFFILE
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Patent number: 10978706Abstract: A disordered rocksalt lithium metal oxide and oxyfluoride as in manganese-vanadium oxides and oxyfluorides well suited for use in high capacity lithium-ion battery electrodes such as those found in lithium-ion rechargeable batteries. A lithium metal oxide or oxyfluoride example is one having a general formula: LixM?aM?bO2-yFy, with the lithium metal oxide or oxyfluoride having a cation-disordered rocksalt structure of one of (a) or (b), with (a) 1.09?x?1.35, 0.1?a?0.7, 0.1?b?0.7, and 0?y?0.7; M? is a low valent transition metal and M? is a high-valent transition metal; and (b) 1.1?x?1.33, 0.1?a?0.41, 0.39?b?0.67, and 0?y?0.3; M? is Mn; and M? is V or Mo. The oxides or oxyfluorides balance accessible Li capacity and transition metal capacity. An immediate application example is for high energy density Li-cathode battery materials, where the cathode energy is a key limiting factor to overall performance. The second structure (b) is optimized for maximal accessible Li capacity.Type: GrantFiled: September 18, 2018Date of Patent: April 13, 2021Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Gerbrand Ceder, HuiWen Ji, Zhengyan Lun, William Richards, Daniil Kitchaev
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Publication number: 20190088945Abstract: A disordered rocksalt lithium metal oxide and oxyfluoride as in manganese-vanadium oxides and oxyfluorides well suited for use in high capacity lithium-ion battery electrodes such as those found in lithium-ion rechargeable batteries. A lithium metal oxide or oxyfluoride example is one having a general formula: LixM?aM?bO2-yFy, with the lithium metal oxide or oxyfluoride having a cation-disordered rocksalt structure of one of (a) or (b), with (a) 1.09?x?1.35, 0.1?a?0.7, 0.1?b?0.7, and 0?y<0.7; M? is a low valent transition metal and M? is a high-valent transition metal; and (b) 1.1?x?1.33, 0.1?a?0.41, 0.39?b?0.67, and 0?y?0.3; M? is Mn; and M? is V or Mo. The oxides or oxyfluorides balance accessible Li capacity and transition metal capacity. An immediate application example is for high energy density Li-cathode battery materials, where the cathode energy is a key limiting factor to overall performance. The second structure (b) is optimized for maximal accessible Li capacity.Type: ApplicationFiled: September 18, 2018Publication date: March 21, 2019Applicants: The Regents of the University of California, Massachusetts Institute Of TechnologyInventors: Gerbrand CEDER, HuiWen JI, Zhengyan LUN, William RICHARDS, Daniil Kitchaev